The locations of these pipelines are marked with identification posts with bright yellow roofs with a thick black line. Even so, in March 2000 at Furness Vale near Whaley Bridge, High Peak, Derbyshire one of the lines was cut by workmen.
Private-sector usage is encouraged, but limited; the OPA's task is to provide "maximum development of private sector usage of the GPSS, provided this does not impinge upon its primary purpose of supplying the required fuel for defence purposes and does not require capital investment from public funds."
In May 2012 the UK Government announced plans to sell all or part of the GPSS and legislation to enable it to do so was included in the Energy Act 2013. Following a complete sale, the OPA would be abolished.